Scan tool wont communicate with 2003 Saturn L300

Tiny
DIDDO
  • 2003 SATURN L300

Stock alarm disconnected fuel system unresponsive

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Thursday, April 5th, 2012 AT 8:25 PM

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Tiny
RASMATAZ
  • MEMBER

Scantool might not be compatible-also check fuse Controls B+ 10amp in the underhood fuse block left side of engine compartment

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Thursday, April 5th, 2012 AT 9:50 PM
Tiny
SATURNTECH9
  • EXPERT
  • 30,646 POSTS

Just to add to this one I have seen a lot of the not being able to talk to the ecms being a bad bcm I have replaced a lot of them on that car.I would make sure the scan tool is compatible and works correctly. Also does the scan tool power up off the car?Also check to make sure the ecm has a nice tight clean ground to the intake manifold.

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Friday, April 6th, 2012 AT 1:41 AM

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